Studies on phase transition and phase coexistence - traversing T and H using liquid helium

Details Studies on phase transition and phase coexistence - traversing T and H using liquid helium Studies on phase transition and phase coexistence - traversing T and H using liquid helium

2008-07-08

arxiv.org/abs/0807.1175v1

Physics

Condensed Matter

Strongly Correlated Electrons

Based on talk at symposium celebrating centenary of helium liquefaction, organized by SNBNCBS, Kolkata

Scientific paper

Liquid helium is crucial to conveniently vary magnetic field (H) and temperature (T) giving access to a large region of (H, T) space; in stark contrast with the effort currently required to explore a comparable region of (P, T) space. The centenary of the liquefaction of helium is an appropriate occasion to talk on the utilization of our facilities for studies across first order phase transitions. We observed some interesting effects in variety of systems traversing (H, T) space across the magnetic first order phase transitions. We focus here on a few recent intriguing discoveries in the half-doped manganites related to the coexistence of equilibrium phase, with a glass-like phase having both structural and magnetic long-range order.

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